Cita APA (7th ed.)

Keedy, M. L., Bittinger, M. L., & Beecher, J. A. (1993). Developmental mathematics (3rd ed.). Addison-Wesley Pub. Co.

Cita Chicago (17th ed.)

Keedy, Mervin Laverne, Marvin L. Bittinger, i Judith A. Beecher. Developmental Mathematics. 3rd ed. Reading, Mass: Addison-Wesley Pub. Co, 1993.

Cita MLA (9th ed.)

Keedy, Mervin Laverne, et al. Developmental Mathematics. 3rd ed. Addison-Wesley Pub. Co, 1993.